<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>身体质量指数检测</h1>
<form action="/bmi">
    <input type="text" name="h" placeholder="身高(米)">
    <input type="text" name="w" placeholder="体重(公斤)">
    <input type="submit">
</form>
</body>
</html>